http://www.abag.ca.gov/bayarea/eqmaps/eqmaps.html
The ABAG Earthquake Hazard Maps page provides information on earthquakes and hazard maps. The page contains documentation for earthquake hazard maps from On Shaky Ground, a book that describes earthquake magnitudes, intensity, and information about actions available for residents. The maps may be viewed by city or by fault line. There are links to the U.S. Geological Survey offices and earthquake fact sheets.